| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,113 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,860 |
| Word Chain - South America | 0 | - | 4.51 | 23,759 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,066 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,131 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,135 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,105 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,213 |
| North America Map Quiz | 0 | - | 4.98 | 244,279 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,367 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,681 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,764 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,583 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Famous People from South America | 0 | - | 4.15 | 21,780 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,341 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,689 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,914 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,864 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,900 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,926 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,277 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,832 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,029 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,466 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,874 |
| States of Mexico | 0 | - | 4.95 | 173,249 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,902 |
| States of Brazil | 0 | - | 4.98 | 86,311 |
| Central American Countries | 0 | - | 4.98 | 154,985 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,794 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,008 |
| History of Mexico | 0 | - | 4.58 | 15,227 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,223 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,577 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,875 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,839 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,060 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,452 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,053 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,645 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,804 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,450 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,549 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,358 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,810 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,059 |
| Australian Capitals | 0 | - | 4.92 | 62,589 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,581 |
| Famous Caribbean People | 0 | - | 4.37 | 12,565 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,919 |
| Territories of the United States | 0 | - | 4.79 | 52,124 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,364 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,505 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,715 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,420 |
| New York City Geography | 0 | - | 4.42 | 32,910 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,210 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,560 |
| Official European Union Languages | 0 | - | 4.97 | 236,461 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,659 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,834 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,719 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,997 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,306 |
| Native American Tribes in the US | 0 | - | 4.70 | 25,256 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,058 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,322 |
| Asia Map Quiz | 0 | - | 4.99 | 906,632 |
| Countries of Africa | 0 | - | 5.00 | 2,506,470 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,778 |
| African East Coast | 0 | - | 4.96 | 95,001 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,893 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,759 |
| Australia Map Quiz | 0 | - | 4.94 | 342,379 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,791 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,185 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,463 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,086 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,083 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,630 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,516 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,782 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,295 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,769 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,408 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,863 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,198 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,402 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,944 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,302 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,142 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,841 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,553 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,189 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,029 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,178 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,886 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,218 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,520 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,462 |
| The Only European Country ... | 0 | - | 4.91 | 213,696 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,450 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,548 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,414 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,570 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,421 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,926 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,569 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,534 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,214 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,476 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,031 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,358 |
| African Island Countries | 0 | - | 4.96 | 100,739 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,573 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,653 |
| Australian States and Territories | 0 | - | 4.95 | 140,610 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,001 |
| Australia True or False | 0 | - | 4.87 | 56,488 |
| Flags of North and South America | 0 | - | 4.99 | 366,684 |
| South American Physical Geography | 0 | - | 4.58 | 18,269 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,598 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,985 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,956 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,014 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,076 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,480 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,232 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,736 |
| Celtic Nations | 0 | - | 4.69 | 46,806 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,393 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,669 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,224 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,443 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,823 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,709 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,752 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,280 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,212 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,153 |
| Slavic Countries | 0 | - | 4.96 | 110,816 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,033 |
| Counties of England | 0 | - | 4.97 | 788,875 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,639 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,163 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,320 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,724 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,373 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,199 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,663 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,440 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,643 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,718 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,101 |
| Countries of the Middle East | 0 | - | 4.96 | 198,827 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,233 |
| States of India | 0 | - | 4.94 | 189,903 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,134 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,991 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,230 |
| The Only African Country ... | 0 | - | 4.99 | 128,322 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,761 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,034 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,259 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,067 |
| Flags of Oceania | 0 | - | 5.00 | 254,976 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,892 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,381 |
| Australia Country Quiz | 0 | - | 4.43 | 69,262 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,034 |
| Regions of New Zealand | 0 | - | 4.85 | 28,119 |
| The Only American Country ... | 0 | - | 4.92 | 120,716 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,304 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,964 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,750 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,032 |
| Which Island in the United States? | 0 | - | 4.29 | 29,144 |
| American Foods | 0 | - | 3.66 | 39,272 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,109 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,664 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,180 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,798 |
| Old West History | 0 | - | 4.33 | 15,221 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,489 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,846 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,643 |
| US States Quiz | 0 | - | 5.00 | 16,692,495 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,571 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,575 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,354 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,149 |
| US States with the Most Executions | 0 | - | 4.51 | 26,347 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,916 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,597 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,059 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,659 |
